// Copyright (c) 2026 Gordon Bolton. MIT License.
import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';

// Mock dependencies
vi.mock('../../../server/utils/logger', () => ({
  logToFile: vi.fn()
}));

// Import after mocking
const DownloadMatcher = require('../../../server/services/DownloadMatcher');

describe('DownloadMatcher', () => {
  const ombiBaseUrl = 'http://localhost:5000';

  beforeEach(() => {
    vi.clearAllMocks();
  });

  describe('addOmbiMatching', () => {
    it('should return early when ombiBaseUrl is missing', () => {
      const downloadObj = { type: 'series', title: 'Test Show' };
      const series = { tvdbId: '12345', tmdbId: '67890' };
      const context = { ombiBaseUrl: null };

      DownloadMatcher.addOmbiMatching(downloadObj, series, context);

      expect(downloadObj.ombiLink).toBeUndefined();
      expect(downloadObj.ombiTooltip).toBeUndefined();
    });

    it('should return early when seriesOrMovie is missing', () => {
      const downloadObj = { type: 'series', title: 'Test Show' };
      const context = { ombiBaseUrl };

      DownloadMatcher.addOmbiMatching(downloadObj, null, context);

      expect(downloadObj.ombiLink).toBeUndefined();
      expect(downloadObj.ombiTooltip).toBeUndefined();
    });

    it('should add ombiLink for series with TMDB ID', () => {
      const downloadObj = { type: 'series', title: 'Test Show' };
      const series = { tmdbId: '67890' };
      const context = { ombiBaseUrl };

      DownloadMatcher.addOmbiMatching(downloadObj, series, context);

      expect(downloadObj.ombiLink).toBe('http://localhost:5000/details/tv/67890');
      expect(downloadObj.ombiTooltip).toBe('View in Ombi');
    });

    it('should add ombiLink for movie with TMDB ID', () => {
      const downloadObj = { type: 'movie', title: 'Test Movie' };
      const movie = { tmdbId: '54321' };
      const context = { ombiBaseUrl };

      DownloadMatcher.addOmbiMatching(downloadObj, movie, context);

      expect(downloadObj.ombiLink).toBe('http://localhost:5000/details/movie/54321');
      expect(downloadObj.ombiTooltip).toBe('View in Ombi');
    });

    it('should not add ombiLink when TMDB ID is missing', () => {
      const downloadObj = { type: 'series', title: 'Test Show' };
      const series = { tvdbId: '12345' };
      const context = { ombiBaseUrl };

      DownloadMatcher.addOmbiMatching(downloadObj, series, context);

      expect(downloadObj.ombiLink).toBeUndefined();
      expect(downloadObj.ombiTooltip).toBeUndefined();
    });

    it('should not add ombiLink for unknown download type', () => {
      const downloadObj = { type: 'unknown', title: 'Test Unknown' };
      const series = { tmdbId: '67890' };
      const context = { ombiBaseUrl };

      DownloadMatcher.addOmbiMatching(downloadObj, series, context);

      expect(downloadObj.ombiLink).toBeUndefined();
      expect(downloadObj.ombiTooltip).toBeUndefined();
    });
  });

  describe('buildSeriesMapFromRecords', () => {
    it('should build a map from queue and history records', () => {
      const queueRecords = [
        { seriesId: 1, series: { id: 1, title: 'Series 1' } }
      ];
      const historyRecords = [
        { seriesId: 2, series: { id: 2, title: 'Series 2' } }
      ];

      const result = DownloadMatcher.buildSeriesMapFromRecords(queueRecords, historyRecords);

      expect(result.get(1)).toEqual({ id: 1, title: 'Series 1' });
      expect(result.get(2)).toEqual({ id: 2, title: 'Series 2' });
    });

    it('should not overwrite existing series in map', () => {
      const queueRecords = [
        { seriesId: 1, series: { id: 1, title: 'Series 1' } }
      ];
      const historyRecords = [
        { seriesId: 1, series: { id: 1, title: 'Series 1 from History' } }
      ];

      const result = DownloadMatcher.buildSeriesMapFromRecords(queueRecords, historyRecords);

      expect(result.get(1).title).toBe('Series 1');
    });
  });

  describe('buildMoviesMapFromRecords', () => {
    it('should build a map from queue and history records', () => {
      const queueRecords = [
        { movieId: 1, movie: { id: 1, title: 'Movie 1' } }
      ];
      const historyRecords = [
        { movieId: 2, movie: { id: 2, title: 'Movie 2' } }
      ];

      const result = DownloadMatcher.buildMoviesMapFromRecords(queueRecords, historyRecords);

      expect(result.get(1)).toEqual({ id: 1, title: 'Movie 1' });
      expect(result.get(2)).toEqual({ id: 2, title: 'Movie 2' });
    });
  });

  describe('getSlotStatusAndSpeed', () => {
    it('should return Paused status when queue is paused', () => {
      const slot = { status: 'Downloading' };
      const result = DownloadMatcher.getSlotStatusAndSpeed(slot, 'Paused', '0', '0');

      expect(result.status).toBe('Paused');
      expect(result.speed).toBe('0');
    });

    it('should return slot status when queue is active', () => {
      const slot = { status: 'Downloading' };
      const result = DownloadMatcher.getSlotStatusAndSpeed(slot, 'Active', '1.5 MB/s', '1536');

      expect(result.status).toBe('Downloading');
      expect(result.speed).toBe('1.5 MB/s');
    });
  });
});